Problems in physics. Derived from military situations and experience (1919)
United States. War Dept. Committee on education and special training, Dodge, Homer Levi, 1887- · [Washington? · leaf 181
vementof telescope a natural one ? Which type of telescope would be more advantageous for lay-ing a gun, that of Problem 59 or 61 ? In general, what statement may we make regarding the numberof reflections which light must undergo in a military tele-scope? In the drawing of a right angle prism, BA… … Figure 10. Penta Prism 66. CA is a second incident ray (not traced through the prism) lying in the plane ABCD and making an angle CAB withthe ray BA. What is the maximum value of angle CAB, iftotal reflection is to be secured at the hypothenus face? 67. Suppose we have any other ray, incident at A,…
Physics · Military art and science
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